From b274c48fc01ed8fe854c285b02f1ac108bbf2721 Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong@huawei.com>
Date: Mon, 17 Jan 2022 10:43:01 +0800
Subject: [PATCH] net/hns3: fix mailbox wait time uninitialization

The mailbox wait time can be specified at runtime. But the variable that
controls this time are not initialized when the variable isn't designated
or is specified as an invalid value, which will fail to initialize device
in the case where no device is bound to initialize the device.

Fixes: 2fc3e696a7f1 ("net/hns3: add runtime config for mailbox limit time")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
---
 drivers/net/hns3/hns3_common.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/hns3/hns3_common.c b/drivers/net/hns3/hns3_common.c
index 0bb552ea3e..78158401f2 100644
--- a/drivers/net/hns3/hns3_common.c
+++ b/drivers/net/hns3/hns3_common.c
@@ -216,7 +216,7 @@ hns3_parse_mbx_time_limit(const char *key, const char *value, void *extra_args)
 
 	/*
 	 * 500ms is empirical value in process of mailbox communication. If
-	 * the delay value is set to one lower thanthe empirical value, mailbox
+	 * the delay value is set to one lower than the empirical value, mailbox
 	 * communication may fail.
 	 */
 	if (val > HNS3_MBX_DEF_TIME_LIMIT_MS && val <= UINT16_MAX)
@@ -236,6 +236,12 @@ hns3_parse_devargs(struct rte_eth_dev *dev)
 	uint64_t dev_caps_mask = 0;
 	struct rte_kvargs *kvlist;
 
+	/* Set default value of runtime config parameters. */
+	hns->rx_func_hint = HNS3_IO_FUNC_HINT_NONE;
+	hns->tx_func_hint = HNS3_IO_FUNC_HINT_NONE;
+	hns->dev_caps_mask = 0;
+	hns->mbx_time_limit_ms = HNS3_MBX_DEF_TIME_LIMIT_MS;
+
 	if (dev->device->devargs == NULL)
 		return;
 
-- 
2.33.0